Home / 22,579.81-33,870.53-7,789.21

Finding the Fourth Proportional to 22,579.81, 33,870.53 and 7,789.21

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Solution

The fourth proportional to 22,579.81, 33,870.53 and 7,789.21 is: 11,684.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,579.81 : 33,870.53 = 7,789.21 : x
  2. Step 2: Convert to fraction form
    22,579.81/33,870.53 = 7,789.21/x
  3. Step 3: Cross multiply
    22,579.81x = 33,870.53 × 7,789.21
  4. Step 4: Simplify right side
    22,579.81x = 263,824,670.98
  5. Step 5: Solve for x
    x = 263,824,670.98/22,579.81
  6. Step 6: Final answer
    x = 11,684.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.